package T_1;

public class test {
	public static void main(String[] args) {
		boolean flag = false;	
		flag = yin() && yang();	
		flag = yang() || yin();		
		System.out.println(yin() | yang());	
		}	
	private static boolean yang(){		
			System.out.println("yang");		
			return true;	
			}	
	private static boolean yin(){	
			System.out.println("yin");		
			return false;	
		}
}


